THE CUBA R E V I 11 W 



15 



The churches, both in Ilabana and the country districts, as a rule are constructed of heavy 

 masonry. The schools in the city are built of masonry, while in the country masonry is used 

 with wood and tile roofs. Put)Hc buildings are constructed of stone and brick masonry or re- 

 inforced concrete. Modern factories and sugar mills are usually built of steel frames covered 

 with corrugated iron or asbestos lumber. Some reinforced concrete is also used. Hotels have 

 steel frames with masonry walls and partitions and reinforced concrete or other fire-resistive 

 floors. 



CIIAR.VCTKR OF SIHSOIL IX TIIK CITIES. 



Most of the present city of Habana is built ou coral reef. The city i)roi)er — that is, the 

 old city — ^was founded on three islands or coral reefs, and the .spaces between these were filled in. 

 In these spaces some clay is found and a part of these low areas was marshy grountl. These 

 natural conditions of subsoil render it necessary to make special studies for the larger buildings 

 when they are to be constructed in the lower part of Habana over the fills which have been made 

 with the development of the city. In one instance the front of an important building was 

 founded on rock, wliiic piles were necessary for the rear part of the .structure. Other liuildings 



Marcus Moralles' Hou^^e, Havana. 



